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坨123区块位于济阳坳陷东营凹陷,坨胜永断裂带。储层岩性以砾岩、砾状砂岩和含砾砂岩为主,受储层地质条件的影响,油层的响应特征受到削弱,甚至完全被淹没在储层岩性和物性的变化之中,给准确计算储层参数带来很大困难。在研究区块“四性”关系的基础上,通过分析不同测井曲线对岩性的敏感性,结合岩屑录井,建立了该区岩性识别曲线,并分析了不同岩性对储层电性和物性的影响,应用岩电实验数据,确定了该区岩电参数,建立了不同岩性下的储层参数计算模型,提高了储层评价精度。
Tuo123 block is located in Dongying Sag, Jiyang Depression and Tuo Sheng-Yong fault zone. The reservoir lithology mainly consists of conglomerate, gravel sandstone and pebble sandstone. Due to the influence of reservoir geological conditions, the reservoir response characteristics are weakened or even completely submerged in the changes of reservoir lithology and physical properties, giving Accurate calculation of reservoir parameters brings great difficulties. Based on the study of the relationship between the block and the “four sexes” and the sensitivity of different logging curves to lithology, combined with debris logging, the lithology identification curve in this area was established and the different lithology pairs The electrical and physical properties of reservoir are analyzed. Based on the experimental data of rock electrical engineering, the rock electrical parameters are determined, and the calculation models of reservoir parameters under different lithologies are established to improve the reservoir evaluation accuracy.